Flash player problem on dailymotion

Hi I'm using the flash player version 11.8.800.94 on firefox on window 8. Starting from a few days ago, while watching videos on dailymotion, after the video played for some time, the whole video will just freeze up, but the timeline is still running. When the video freezes, the audio will still be playing but instead of just continuing, the audio actually resetted to the beginning. I tried all the troubleshooting steps including clean reinstall of flash, update of video driver, firefox safe mode, clean install of firefox etc. But the issue is still persisting. Any help will be deeply appreciated. The issue only happens on dailymotion and not other streaming site like youtube.